15km^3天然气球罐设计研究及优化  

Research and optimization of 15km^3 gas spherical tank design

作　　者：周利剑[1] 郭俊男[1] 王雪[1] 吴育建 ZHOU Lijian;GUO Junnan;WANG Xue;WU Yujian(Northeast Petroleum University, Civil Engineering and Architecture, Da qing 163318, China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318

出　　处：《世界地震工程》2018年第2期190-199,共10页World Earthquake Engineering

摘　　要：天然气的广泛应用,促进存储容器向大型化发展。以已投产使用的10km3天然气球罐为设计基础,设计建造完全国产化的15km3天然气球罐,利用计算参数建立有限元模型,验证模型的可靠性。建立双层拉杆模型,施加地震荷载及风载,进行动力响应分析及应力分析。为讨论双层拉杆最优位置及直径,建立了5种上下拉杆比例不同的模型,另外每种比例模型设计3种不同拉杆直径。结果表明:在8度设防二类场地地震波的情况下,上层和下层拉杆比例为0.618∶1,直径为50mm的模型对于球罐优化方面优于其他模型,球罐各项参数均显著减小且应力无放大效应。The wide application of natural gas promotes spherical tank development to large scale. This paper based on 10km^3 natural gas spherical tank that has been put into operation, in order to design indigenous 15km^3 natural gas spherical tank. With established finite-element model by calculated parameters, we verified the reliability of the model. A double-layer tie bar was established to processed dynamic response analysis and stress analysis by applying seismic load and wind load. In order to discussed the optimal position and the best tie bar diameter, this paper established 5 kinds of models with different upper and lower tie bar ratios, and every model had 3 different bar diameters. Results show that in the case of 8 degree fortification, under the seismic wave of second site, the model which upper and lower tie bar ratio is 0. 618： 1, tie bar diameter being 50 mm is better than others, several parameters of spherical tank have reduced and stress has no amplification effect.

关 键 词：天然气球罐 有限元模型 双层拉杆 动力响应分析 应力分析 

分 类 号：P315.9[天文地球—地震学]